Efficient bulk heterojunction solar cells with copolymers based on fluorene, dithienylbenzothiadiazole, and thiophene derivatives

Po I. Lee; Steve Lien Chung Hsu; Jung Feng Lee

doi:10.1016/j.solmat.2011.01.044

Efficient bulk heterojunction solar cells with copolymers based on fluorene, dithienylbenzothiadiazole, and thiophene derivatives

Po I. Lee, Steve Lien Chung Hsu, Jung Feng Lee

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

Three copolymers, PFTpBt, PFbCNTpBt, and PFC6TpBt, which are based on dioctylfluorene, dithienylbenzothiadiazole, and thiophene derivatives with different functional groups, were synthesized via a Suzuki reaction. The copolymers were characterized by NMR, GPC, TGA, UVvis absorption, and electrochemical cyclic voltammetry. Thermogravimetric analysis showed that the copolymers exhibited good thermal stability. The optical, electrochemical, photovoltaic properties, and hole mobility of the copolymers were investigated and discussed. The polymer solar cell based on PFTpBt had the best performance, with a power conversion efficiency (PCE) of 2.17% under the illumination of AM 1.5, 100 mW/cm².

Original language	English
Pages (from-to)	1756-1761
Number of pages	6
Journal	Solar Energy Materials and Solar Cells
Volume	95
Issue number	7
DOIs	https://doi.org/10.1016/j.solmat.2011.01.044
Publication status	Published - 2011 Jul 1

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Renewable Energy, Sustainability and the Environment
Surfaces, Coatings and Films

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title = "Efficient bulk heterojunction solar cells with copolymers based on fluorene, dithienylbenzothiadiazole, and thiophene derivatives",

abstract = "Three copolymers, PFTpBt, PFbCNTpBt, and PFC6TpBt, which are based on dioctylfluorene, dithienylbenzothiadiazole, and thiophene derivatives with different functional groups, were synthesized via a Suzuki reaction. The copolymers were characterized by NMR, GPC, TGA, UVvis absorption, and electrochemical cyclic voltammetry. Thermogravimetric analysis showed that the copolymers exhibited good thermal stability. The optical, electrochemical, photovoltaic properties, and hole mobility of the copolymers were investigated and discussed. The polymer solar cell based on PFTpBt had the best performance, with a power conversion efficiency (PCE) of 2.17% under the illumination of AM 1.5, 100 mW/cm2.",

author = "Lee, {Po I.} and Hsu, {Steve Lien Chung} and Lee, {Jung Feng}",

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AU - Lee, Po I.

AU - Hsu, Steve Lien Chung

AU - Lee, Jung Feng

PY - 2011/7/1

Y1 - 2011/7/1

N2 - Three copolymers, PFTpBt, PFbCNTpBt, and PFC6TpBt, which are based on dioctylfluorene, dithienylbenzothiadiazole, and thiophene derivatives with different functional groups, were synthesized via a Suzuki reaction. The copolymers were characterized by NMR, GPC, TGA, UVvis absorption, and electrochemical cyclic voltammetry. Thermogravimetric analysis showed that the copolymers exhibited good thermal stability. The optical, electrochemical, photovoltaic properties, and hole mobility of the copolymers were investigated and discussed. The polymer solar cell based on PFTpBt had the best performance, with a power conversion efficiency (PCE) of 2.17% under the illumination of AM 1.5, 100 mW/cm2.

AB - Three copolymers, PFTpBt, PFbCNTpBt, and PFC6TpBt, which are based on dioctylfluorene, dithienylbenzothiadiazole, and thiophene derivatives with different functional groups, were synthesized via a Suzuki reaction. The copolymers were characterized by NMR, GPC, TGA, UVvis absorption, and electrochemical cyclic voltammetry. Thermogravimetric analysis showed that the copolymers exhibited good thermal stability. The optical, electrochemical, photovoltaic properties, and hole mobility of the copolymers were investigated and discussed. The polymer solar cell based on PFTpBt had the best performance, with a power conversion efficiency (PCE) of 2.17% under the illumination of AM 1.5, 100 mW/cm2.

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